Are you interested in working as a CFD analyst in a high-tech environment? If so, then respond to the job opportunity at NRG to work as a:




NRG is Europe’s largest supplier of medical isotopes and operator of the High Flux Reactor (HFR). It produces isotopes for around 10 million patient treatments per year in more than 90 countries. NRG also conducts nuclear technology research and is active in the development of new isotopes for both therapeutic and diagnostic uses.

What you will do:

  • Perform CFD computations and analyses for internal and external customers, as well as for commercial and government funded research programs.

Examples include:

  • Flow and heat transfer analysis in nuclear reactor cooling

systems during normal operation as well as during postulated accident conditions

  • Flow and heat transfer analysis in fuel assemblies and reactor cores of future nuclear reactor designs
  • Computation of possible fires and explosions in a reactor building
  • Support calculations for design and optimisation of irradiation facilities for medical isotope production
  • Flow induced vibrations in components
  • Further model development for all-flow regime two-phase flow modelling and fluid-structure interaction modelling
  • Application of uncertainty quantification and machine learning methods to CFD analyses
  • Take overall responsibility for projects.
  • Broaden and deepen the knowledge and quality of the team.
  • Develop new research and innovation proposals supporting the company and team strategy.
  • Contribute to the team strategy within your area(s) of expertise.
  • Develop a network and maintain contacts with clients, both internal and external.


  • An academic degree
  • Technical background in mechanical, chemical, aerospace engineering, applied physics, or applied mathematics
  • You have obtained, or will obtain in the near future, a PhD degree in CFD
  • Preferably 3 – 8 years of experience with CFD methods
  • Good communication skills

You are:

  • Focused on quality
  • Ambitious
  • A team player
  • Motivated
  • Good in developing and maintaining a network in your field of knowledge
  • Inquisitive
  • Structured and organized


The Research & Innovation unit deals with all NRG’s research and innovation activities. The focus of the unit is on new developments for nuclear energy and technology applications, and on the improvement of nuclear medicine and isotope production. On top of that, R&I maintains the nuclear knowledge base of NRG, which is fundamental to NRG’s current and future business.

The R&I unit consists of a Program Development team, a Reactor Analyses & Operational Support team, a Materials & Fuel Qualification team, and an Isotopes Development team. The CFD expertise is concentrated within the Reactor Analyses & Operational Support team at the NRG site in Petten.

Conditions of employment

Besides an interesting function and meaningful work, NRG also offers you good working conditions.

Modern and market compliant package of conditions

  • A good salary with growth opportunities;
  • 27 holiday days and 12 days of flex (fulltime employment);
  • 6.3%-year allowance and 8% holiday surcharge;
  • Pension at the ABP; NRG pays 74% of premium;
  • A good salary with growth opportunities;
  • Travel expenses and mobility budget.

Personal development

  • A 3-day onboarding for everyone new in service;
  • An annual training budget and room for your own wishes.

Flexibility and balance work-private life

  • Possibility to buy leave.

Fun activities

  • Movement during lunch time;
  • An active personnel association.

Information & Application

Does this position appeal to you? If so, you can apply directly via our website To know more about this position or our company, please contact our corporate recruiter Nancy Roggeveen via 06-15590245 or mail to or contact Ed Komen (, Reactor Analyses & Operational Support, unit Research & Innovation.

Safety investigations are part of the selection procedure.

The close date for this position is the 5th of January.

Apply now

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